package/mpg123: fix deactivate typo

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 21697b50db70cc4c0bba287eee8a99a8a1b640b9)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/mpg123/mpg123.mk

@@ -15,7 +15,7 @@ MPG123_DEPENDENCIES = host-pkgconf
 
 # mpg123 has some assembly function that is not present in Thumb mode:
 # Error: selected processor does not support `smull r3,ip,r2,r10' in Thumb mode
-# so, we desactivate Thumb mode
+# so, we deactivate Thumb mode
 ifeq ($(BR2_ARM_INSTRUCTIONS_THUMB),y)
 MPG123_CONF_ENV += CFLAGS="$(TARGET_CFLAGS) -marm"
 endif